County annual report · FIPS 28047
2017 Harrison County, MS Power Outage Report
In 2017, customers in Harrison County, MS went without power for an average of 0.8 hours, a total of 85K customer-hours (Mississippi average 6.6 hours). That ranks 63rd worst of 77 Mississippi counties and 2144th of 2,786 nationally.
Compared with MS, the US and 2016
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Harrison County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 7, 2017 19:15 | October 9, 2017 03:00 | 1d 7h | 2,647 | 28K |
| 2 | April 30, 2017 19:30 | May 1, 2017 03:45 | 8h 15m | 2,429 | 2,971 |
| 3 | June 29, 2017 20:30 | June 30, 2017 11:45 | 15h 15m | 2,281 | 3,672 |
| 4 | October 9, 2017 18:45 | November 5, 2017 04:00 | 26d 9h | 1,453 | 4,135 |
| 5 | January 30, 2017 13:00 | January 30, 2017 13:15 | 15m | 1,415 | 354 |
| 6 | April 7, 2017 07:45 | April 7, 2017 13:30 | 5h 45m | 1,406 | 2,355 |
| 7 | August 30, 2017 06:00 | August 30, 2017 22:00 | 16h | 1,397 | 487 |
| 8 | August 21, 2017 18:15 | August 21, 2017 21:30 | 3h 15m | 1,083 | 1,244 |
| 9 | May 23, 2017 12:45 | May 23, 2017 15:15 | 2h 30m | 1,049 | 273 |
| 10 | August 18, 2017 21:00 | August 19, 2017 05:15 | 8h 15m | 970 | 963 |
Outage episodes by size in 2017: 82 reached 100+ customers, 9 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Harrison County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Mississippi Power Co | 2017 | 4.0 hrs | 1.30 | 78 min | 0.93 |
| Singing River Elec Cooperative | 2017 | 10.5 hrs | - | 2.5 hrs | - |
| Coast Electric Power Assn - (MS) | 2017 | 3.5 hrs | 1.75 | 47 min | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Mississippi's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 109,081 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Harrison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harrison County, MS annual power outage report, 2017, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2017/mississippi/harrison-county